CN211414863U

CN211414863U - Quick-change caliper and shear head for hydraulic tool

Info

Publication number: CN211414863U
Application number: CN201922323785.7U
Authority: CN
Inventors: 张银根; 何挺伟; 宁建忠
Original assignee: Taizhou Juli Tools Co ltd
Current assignee: Taizhou Juli Tools Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-04
Anticipated expiration: 2029-12-23

Abstract

The utility model belongs to the technical field of hydraulic means, refer in particular to a quick change formula calliper and shear head for hydraulic means, including left tong arm and right tong arm, both sides all are equipped with even board around left side tong arm and the right tong arm, and even the board passes through the cylindric lock and links to each other with left tong arm and right tong arm, link to each other the connecting hole of having seted up the mounting hole on the board and supplying the cylindric lock to pass, seted up the shaft hole on left side tong arm and the right tong arm, the cylindric lock runs through and installs in connecting hole and shaft hole, be provided with the extension spring between left side tong arm and the right tong arm, left side tong arm and right tong arm upper end can be replaced and be provided with moulding-die or. The utility model discloses be provided with the extension spring between left tong arm and right tong arm, make the front end of left tong arm and right tong arm can keep opening under the inoperative state through setting up of extension spring, be convenient for directly with pending pipe fitting card go into about between the tong arm, make things convenient for the crimping in later stage or cut more.

Description

Quick-change caliper and shear head for hydraulic tool

Technical Field

The utility model belongs to the technical field of hydraulic means, refer in particular to a hydraulic means is with quick change formula calliper and head of cuting.

Background

In the pipeline or cable laying engineering, the pipeline or cable is usually required to be cut or crimped according to actual conditions, and the situation that the pipeline or cable is required to be cut firstly and then crimped is often encountered; meanwhile, the existing tool heads are similar to scissors, when the pipeline is cut or crimped, the pipe fitting or the cable needs to be clamped into the middle of the tool heads, most of the tool heads are in a closed state when not used, the tool heads need to be opened firstly and then the pipe fitting or the cable is clamped into the tool heads, the steps are complex, and the efficiency is low.

Disclosure of Invention

The utility model aims at providing a quick change formula calliper and shear head that is used for hydraulic tool that the opening is normally opened, conveniently carries out crimping or shearing.

The purpose of the utility model is realized like this:

the utility model provides a quick change formula calliper and shear head for hydraulic means, includes left tong arm and right tong arm, both sides all are equipped with even board around left side tong arm and the right tong arm, link the board and pass through the cylindric lock and link to each other with left tong arm and right tong arm, link and set up the connecting hole that the mounting hole and supply the cylindric lock to pass on the board, the shaft hole has been seted up on left side tong arm and the right tong arm, and the cylindric lock runs through to be installed in connecting hole and shaft hole, be provided with the extension spring between left side tong arm and the right tong arm, left side tong arm and right tong arm upper end can be replaced and be provided with moulding-die or blade.

The connecting holes comprise a left connecting hole and a right connecting hole, and the circle center of the mounting hole is located on the middle vertical line of the circle center connecting line of the left connecting hole and the right connecting hole.

The left clamp arm and the right clamp arm are respectively provided with a left elastic pin and a right elastic pin at the middle parts, the two ends of the tension spring are respectively hooked on the left elastic pin and the right elastic pin, and the distance from the left elastic pin to the side edge of the left clamp arm is equal to the distance from the right elastic pin to the side edge of the right clamp arm.

Further, mounting grooves are formed in opposite surfaces of the left clamp arm and the right clamp arm, the two mounting grooves are combined to form a mounting cavity, and a steel ball is arranged in the mounting cavity.

Further, the cylindrical pin is fixedly connected to the connecting plate through a screw and a pressing plate.

The pressing die comprises a left pressing die and a right pressing die, the left pressing die is mounted on the left clamp arm, the right pressing die is mounted on the right clamp arm, and positioning assemblies are arranged between the left pressing die and the left clamp arm and between the right pressing die and the right clamp arm.

The positioning assembly comprises a positioning pin, the outer end of the positioning pin extends out of the left clamp arm and the right clamp arm, a positioning table is formed at the inner end of the positioning pin, one end of the positioning table is in contact with the pressing die, and a spring is arranged at the other end of the positioning table.

The pressing die is further provided with a limiting groove, and limiting bosses matched with the limiting groove are formed at the end parts of the left clamp arm and the right clamp arm.

The left clamp arm and the right clamp arm are provided with mounting positions, the blades are connected to the mounting positions through screws or bolts, and the blades on the left clamp arm and the right clamp arm are arranged in a staggered mode.

Further, a limiting lug is formed on the mounting position, and the bottom of the blade is positioned on the inner side of the limiting lug.

The blade combination on the left and right clamp arms forms a U-shaped knife edge.

The utility model is provided with the tension spring between the left clamp arm and the right clamp arm, the front ends of the left clamp arm and the right clamp arm can be kept open under the idle state through the tension spring, the pipe fitting to be processed can be conveniently and directly clamped between the left clamp arm and the right clamp arm, and the later-stage crimping or shearing is more convenient; the utility model is provided with the mounting hole on the connecting plate, the whole tool head can be arranged on the main body of the hydraulic tool through the mounting hole, and meanwhile, the tool heads with different functions can be conveniently disassembled and replaced; the upper end parts of the left clamp arm and the right clamp arm of the utility model can be provided with a pressing die or a blade in a replaceable way, and when the pressing die is arranged, a crimping tool is formed, and the pipe fitting can be crimped; when the cutting tool is arranged as the blade, the pipe fitting can be cut, and under the condition that the pipe fitting needs to be cut firstly and then crimped, a pressing die tool or a blade tool can be conveniently detached and replaced to perform function conversion, so that the cutting tool is very convenient to use.

Drawings

Fig. 1 is one of the partial sectional views of the present invention.

Fig. 2 is a partially enlarged view of fig. 1 at a.

Fig. 3 is a partially enlarged view of fig. 1 at B.

Fig. 4 is a schematic structural view of the connecting plate of the present invention.

Fig. 5 is a second cross-sectional view of the present invention.

Fig. 6 is a third cross-sectional view of the present invention.

Fig. 7 is a schematic structural view of a binding clip on which the present invention can be mounted.

Fig. 8 is a schematic structural view of a locking member to which the binding clip of the present invention can be attached.

Fig. 9 is a schematic structural view of the jawarms of the present invention when the blades are mounted thereon.

Detailed Description

The invention will be further described in the following with reference to the drawings, in which reference is made to figures 1-9,

as shown in fig. 1 and 6, a quick-change caliper and a shearing head for a hydraulic tool comprise a left caliper arm 11 and a right caliper arm 12, wherein the left caliper arm 11 and the right caliper arm 12 are respectively provided with a connecting plate 2 at the front side and the rear side of the left caliper arm 11 and the right caliper arm 12, the connecting plate 2 is connected with the left caliper arm 11 and the right caliper arm 12 through a cylindrical pin 3, the connecting plate 2 is provided with a mounting hole 21 and a connecting hole for the cylindrical pin 3 to pass through, the left caliper arm 11 and the right caliper arm 12 are provided with a shaft hole 13, the cylindrical pin 3 is installed in the connecting hole and the shaft hole 13 in a penetrating manner, so that the front connecting plate and the rear connecting plate are connected to the left caliper arm and the right caliper arm, a tension spring 4 is arranged between the left caliper arm 11 and the right caliper arm 12, and the upper ends of the left caliper arm 11. When the pressing die is installed, a caliper (shown in figure 1) can be formed, and the pipe fitting is pressed and connected; when the blade is installed, a shearing head (as shown in fig. 6) can be formed, the pipe fitting is sheared, the whole clamp arm is connected with the hydraulic tool clamp head through the installation hole 2, the clamp arm is driven to work through the hydraulic tool main body, and the specific installation mode is as follows:

as shown in fig. 7 and 8, a bit 24 is disposed at the front end of the hydraulic tool body, an opening 241 is disposed on the bit 24, the clamp arm is detachably mounted at the opening 241, two through holes 25 are disposed on the bit 24, and the mounting hole 21 and the through hole 25 are detachably connected through a locking member. The specific connection structure is as follows: the locking piece comprises a connecting shaft 26, one end of the connecting shaft 26 penetrates through the through hole 25 and the mounting hole 21, the other end of the connecting shaft 26 is connected with a locking handle 27, a hole 242 is formed in the binding clip 24, a reset piece 281 and a locking pin 282 are arranged in the hole 242, the reset piece selects a spring, an opening in the upper end of the hole 242 is formed in the through hole 25, and a locking groove 29 matched with the locking pin 282 is formed in the connecting shaft 26. The locking groove 29 includes a radial groove 291 and an axial groove 292 which communicate with each other.

When the clamp arm is installed, the locking member is taken out, then the clamp arm is clamped into the opening 241, the installation hole 21 is aligned with the through hole 25, at this time, due to the action of the spring (the reset member 281), the lock pin 282 is ejected, the upper end of the lock pin 282 protrudes and is positioned in the through hole 25, the connecting shaft 26 is rotated to the direction that the notch of the axial groove 292 faces the lock pin 282 to be inserted, when one end of the connecting shaft 26 is clamped into the through hole 25 positioned at the outer side, the upper end of the lock pin 282 is just positioned in the radial groove 291, in order to prevent the locking member from slipping out in the working process, the locking handle can be rotated to enable the notch of the axial groove 292 to face the direction except the lock pin 282, at this time, the upper end of the lock pin 282 can be stably abutted against the axial groove 292, the connecting shaft 26 cannot be axially moved (in order to facilitate an, as shown in fig. 7, when the locking handle is facing downward, i.e., the notch representing the axial slot 292 is facing upward, the notch is facing away from the locking pin 282; conversely, when the locking handle is facing upward, i.e., the notch representing the axial slot 292 is facing downward, the notch is facing the locking pin 282). When the forceps arms are disassembled, the locking handle 27 is firstly rotated, the notch of the connecting axial groove faces to the direction of the lock pin 34, the locking handle 27 can be pulled, the connecting shaft 25 is taken out, and then the forceps heads are taken down, so that the forceps arms are very convenient. Therefore, under the scene of shearing the pipe fitting again with the pipe fitting crimping to some needs earlier, can change shearing head and calliper through the mode of the installation of the aforesaid dismantlement, when operating personnel goes out the operation, only need carry a hydraulic means, match several instrument tong arms again can, need not every tong arm and all match a hydraulic means, very laborsaving convenience.

The connecting holes comprise a left connecting hole 22 and a right connecting hole 23, the circle center of the mounting hole 21 is located on a perpendicular bisector of a circle center connecting line of the left connecting hole 22 and the right connecting hole 23, the mounting hole 21 is mainly used for mounting the clamp arm on a clamp head of a hydraulic tool, the mounting hole is arranged in the middle of the center, the center line of the clamp arm and the force application direction of the hydraulic tool can be located on the same straight line during mounting, force application is facilitated, force application is stable, and work is facilitated.

The middle part of left side tong arm 11 and right tong arm 12 is seted up porosely respectively, and two hole combinations form and hold the region of extension spring 4, the both ends in hole are provided with left spring pin 14 and

right spring pin

15, 4 both ends of extension spring are colluded respectively and are established on left spring pin 14 and right spring pin 15, and the distance of left spring pin 14 to left tong arm 11 side equals with the distance of right spring pin 15 to right tong arm 12 side. The tension spring is arranged to help the front ends of the left clamp arm and the right clamp arm to always keep a normally open state under the condition of no external force, and the use is convenient.

The opposite surfaces of the left clamp arm 11 and the right clamp arm 12 are provided with mounting grooves, the two mounting grooves are combined to form a mounting cavity, and a steel ball 19 is arranged in the mounting cavity. The arrangement of the steel ball can prevent the left clamp arm and the right clamp arm from being staggered in the closing process, and the accuracy of the structure is enhanced.

The cylindrical pin 3 is fixedly connected to the connecting plate 2 through a screw 9 and a pressing plate, the pressing plate is connected to the connecting plate through the screw, and the inner end of the screw penetrates through the connecting plate, the connecting plate and the clamp arm, so that the connecting plate, the clamp arm and the connecting plate are directly fixed through the screw, connection between the connecting plate and the clamp arm is strengthened, and stability of a structure is strengthened.

The pressing die comprises a left pressing die 1 arranged on the left clamp arm 11 and a right pressing die 2 arranged on the right clamp arm 12, and positioning assemblies are arranged between the left pressing die 1 and the left clamp arm 11 and between the right pressing die 2 and the right clamp arm 12. The die is used for crimping the pipe fitting, and the die can replace matched workpieces according to the shape of the actual pipe fitting, such as a hexagonal die, a circular die and the like. As shown in fig. 1 and 3, the positioning assembly includes a positioning pin 8, the outer end of the positioning pin 8 extends out of the left clamp arm 11 and the right clamp arm 12 to form a positioning cap 83, a positioning table 81 is formed at the inner end of the positioning pin 8, a mounting cavity 119 is formed in the clamp arm, the mounting cavity is composed of two sections of through holes with different inner diameters, an annular boss 18 is formed at the joint of the two through holes, the outer end of the positioning table 81 contacts with the pressing die, and a spring 82 is arranged between the inner end of the positioning table 81 and the annular boss 18 in a pressing manner. As shown in fig. 2, the pressing die is provided with a limiting groove 53, and the end portions of the left clamp arm 11 and the right clamp arm 12 are formed with a limiting boss 16 matched with the limiting groove 53. By arranging the positioning assembly and the matching structure between the limiting groove and the limiting boss, the pressing die can be firmly pressed on the pipe fitting during operation, a fastening effect is achieved, the pipe fitting is not easy to slide, and the operation accuracy is improved; when the pressing die needs to be replaced, the pressing die can be detached to be replaced by adjusting the positioning pin 8, and the replacement is very convenient.

As shown in fig. 6 and 9, the upper ends of the left clamp arm 11 and the right clamp arm 12 are respectively provided with mounting positions 61, the two mounting positions are arranged in a staggered manner, the blade 6 is connected to the mounting positions 61 through screws or bolts, the cutting edges of the blade 6 on the left clamp arm 11 and the right clamp arm 12 are arranged oppositely, and the two blades are arranged in a staggered manner in the front-back direction. The blades 6 on the left clamp arm 11 and the right clamp arm 12 are combined to form a U-shaped knife edge, and a shearing tool is formed after the blades are installed, so that a pipe fitting or a cable can be sheared. A limiting lug 62 is formed on one side of the mounting position 61, the bottoms of the front and rear blades 6 are positioned between the front and rear limiting lugs 62 (as shown in fig. 9), and in the use process, the limiting lugs 62 can limit the position of the blades 6, so that the blades 6 are prevented from being separated outwards due to excessive force in the rotating process, and meanwhile, a guiding effect can be achieved for the rotation of the blades.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a quick change caliper and shear head for hydraulic tool, includes left tong arm (11) and right tong arm (12), its characterized in that, both sides all are equipped with even board (2) around left tong arm (11) and right tong arm (12), link board (2) and link to each other with left tong arm (11) and right tong arm (12) through cylindric lock (3), link to each other and seted up mounting hole (21) and supply the connecting hole that cylindric lock (3) passed on board (2), shaft hole (13) have been seted up on left tong arm (11) and right tong arm (12), and cylindric lock (3) run through and install in connecting hole and shaft hole (13), be provided with between left tong arm (11) and right tong arm (12) extension spring (4), left tong arm (11) and right tong arm (12) upper end are provided with replaceable moulding-die or blade (6).

2. The quick-change caliper and shear head for a hydraulic tool of claim 1, wherein: the connecting holes comprise a left connecting hole (22) and a right connecting hole (23), and the circle center of the mounting hole (21) is located on the perpendicular bisector of the connecting line of the circle centers of the left connecting hole (22) and the right connecting hole (23).

3. The quick-change caliper and shear head for a hydraulic tool of claim 1, wherein: the middle part of left tong arm (11) and right tong arm (12) is provided with left spring pin (14) and right spring pin (15) respectively, extension spring (4) both ends are colluded respectively and are established on left spring pin (14) and right spring pin (15), and the distance of left spring pin (14) to left tong arm (11) side equals with the distance of right spring pin (15) to right tong arm (12) side.

4. The quick-change caliper and shear head for a hydraulic tool of claim 3, wherein: the opposite surfaces of the left clamp arm (11) and the right clamp arm (12) are provided with mounting grooves, the two mounting grooves are combined to form a mounting cavity, and a steel ball (19) is arranged in the mounting cavity.

5. The quick-change caliper and shear head for a hydraulic tool of claim 1, wherein: the cylindrical pin (3) is fixedly connected to the connecting plate (2) through a screw (9) and a pressing plate.

6. Quick-change caliper and shear head for a hydraulic tool according to any one of claims 1 to 5, characterized in that: the pressing die comprises a left pressing die (51) arranged on the left clamp arm (11) and a right pressing die (52) arranged on the right clamp arm (12), and positioning assemblies are arranged between the left pressing die (51) and the left clamp arm (11) and between the right pressing die (52) and the right clamp arm (12).

7. The quick-change caliper and shear head for a hydraulic tool of claim 6, wherein: the positioning assembly comprises a positioning pin (8), the outer end of the positioning pin (8) extends out of the left clamp arm (11) and the right clamp arm (12), a positioning table (81) is formed at the inner end of the positioning pin (8), one end of the positioning table (81) is in contact with the pressing die (5), and a spring (82) is arranged at the other end of the positioning table (81).

8. The quick-change caliper and shear head for a hydraulic tool of claim 6, wherein: and the pressing die is provided with a limiting groove (53), and the end parts of the left clamp arm (11) and the right clamp arm (12) are provided with limiting bosses (16) matched with the limiting groove (53).

9. Quick-change caliper and shear head for a hydraulic tool according to any one of claims 1 to 5, characterized in that: the left clamp arm (11) and the right clamp arm (12) are provided with mounting positions (61), the blades (6) are connected to the mounting positions (61) through screws or bolts, and the blades (6) on the left clamp arm (11) and the right clamp arm (12) are arranged in a staggered mode.

10. The quick-change caliper and shear head for a hydraulic tool of claim 9, wherein: the mounting position (61) is formed with a limiting convex block (62), and the bottom of the blade (6) is positioned on the inner side of the limiting convex block (62).